Answer: crossing over
during the process of fertilization, a sperm and egg join together to create a zygote. since a sperm had half the number of chromosomes and an egg has half the number of chromosomes, when they join together the zygote had a complete diploid set of chromosomes. the assortment of chromosomes and crossing over promotes genetic variation during the process of reproduction
Answer:
At higher levels of extinction (41 to 60 percent of species), the impacts of species loss ranked with those of many other major drivers of environmental change, such as ozone pollution, acid deposition on forests, and nutrient pollution.
Explanation:
Answer:
Polar molecules are more sticker because they attract water molecules.
Explanation: your right it is bacteria , could i pls get a brainlesttttt
1) True
2) False
3) False
4) True
5) True
6) True
7) True
8) True
